CN219430703U - Rock stratum drainage device of underground factory building of pumped storage power station - Google Patents
Rock stratum drainage device of underground factory building of pumped storage power station Download PDFInfo
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- CN219430703U CN219430703U CN202320402979.XU CN202320402979U CN219430703U CN 219430703 U CN219430703 U CN 219430703U CN 202320402979 U CN202320402979 U CN 202320402979U CN 219430703 U CN219430703 U CN 219430703U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/20—Hydro energy
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Abstract
The utility model discloses a rock stratum drainage device of a pumped storage power station underground factory building, which comprises a plurality of drop down pipes, a plurality of first drainage branch pipes, a plurality of water collecting pipes and a plurality of second drainage branch pipes; each first drainage branch pipe is paved on the outer wall of the water diversion steel branch pipe, the installation direction of each first drainage branch pipe is consistent with the trend of the corresponding water diversion steel branch pipe, the drainage ends of the drop pipes extend into the underground factory building of the pumped storage power station, the drainage ports of at least three second drainage branch pipes with intervals are communicated with the corresponding drop pipes, and the drainage ends of at least three water collecting pipes with intervals are respectively communicated with one corresponding first drainage branch pipe; at least three first drainage branch pipes which are spaced are communicated with each other through the water inlets of a corresponding second drainage branch pipe. The utility model avoids water seepage of the upstream side wall of the underground workshop and can keep the interior of the underground workshop dry.
Description
Technical Field
The utility model relates to the technical field of underground factory building drainage of pumped storage engineering, in particular to a stratum drainage device of an underground factory building of a pumped storage power station.
Background
The water drainage system is generally arranged in the water diversion steel branch pipe area of the surrounding rock at the upstream side of the underground powerhouse in the pumped storage powerhouse so as to ensure the safe and dry proper operation environment of the upstream side wall of the underground powerhouse and even the whole underground powerhouse area.
Conventional designs include steel pipe wall drainage systems and steel leg rock wall drainage systems, which suffer from the following disadvantages:
(1) There may be some safety hazard. The drainage system of the pipe wall of the steel pipe is communicated with the drainage system of the rock wall of the steel branch pipe by adopting longitudinal angle steel and a longitudinal water collecting pipe, a branch hole is constructed on the water diversion steel branch pipe by adopting the water collecting pipe to be led out, and the risk that mountain groundwater of an underground factory building is led to an upstream side wall of the underground factory building along channels such as a loose ring of surrounding rock of the water diversion steel branch pipe, a contact surface of backfilled concrete outside the steel pipe and the steel pipe, a contact surface of backfilled concrete and the surrounding rock, an outer drainage system of the steel pipe and the like exists.
(2) The monitoring data is not visual, and the effect of the treatment measures is limited. The water collecting pipe of the conventional drainage system is led out from the position of the diversion steel branch pipe construction branch hole plug, the pressure gauge and the gate valve arranged at the pipe orifice are far away from the upstream side wall of the underground factory building, the monitoring data cannot reflect the actual pressure of the water collecting pipe, and the effect of the measure for treating the water leakage when the gate valve is opened is limited.
(3) The construction causes the distortion of the monitoring data and the difficulty of daily maintenance. The longitudinal angle steel and the rock drainage holes of the steel pipe wall drainage system and the steel branch pipe rock wall drainage system are extremely easy to be blocked in the grouting construction process, so that monitoring data are distorted and cannot be maintained.
(4) By adopting the conventional scheme, the water seepage channel is blocked on the site where water seepage of the upstream side wall of the factory building often occurs in the actual water filling process, the passive treatment measure is to temporarily fill the holes of the upstream side wall of the factory building for blocking, the construction scheme is more complicated, the treatment effect is not ideal, and the repeated water seepage often occurs.
Disclosure of Invention
In view of the above, it is necessary to provide a stratum drainage device for a pumped-storage power station underground plant to solve the above-mentioned drawbacks in the background art, thereby solving the technical problems of how to avoid water seepage from the upstream side wall of the pumped-storage power station underground plant and to keep the interior of the plant dry.
In order to achieve the above purpose, the present utility model adopts the following technical scheme:
the utility model provides a stratum drainage device of a pumped storage power station underground factory building, which is applied to stratum at the upstream/upper part of the pumped storage power station underground factory building, wherein a water diversion steel branch pipe of the pumped storage power station is arranged in the stratum, and the stratum drainage device comprises a plurality of drop down pipes, a plurality of first drainage branch pipes, a plurality of water collecting pipes and a plurality of second drainage branch pipes;
each first drainage branch pipe is paved on the outer wall of the water diversion steel branch pipe, the installation direction of each first drainage branch pipe is consistent with the trend of the corresponding water diversion steel branch pipe, the drainage end of the drop pipe extends into the underground factory building of the pumped storage power station, the drop pipes are respectively communicated with the water outlets, and the drainage ends of at least three water collecting pipes at intervals are respectively communicated with one corresponding first drainage branch pipe; at least three first drainage branch pipes which are spaced apart are communicated through water inlets of a corresponding second drainage branch pipe;
each water collecting pipe and the corresponding first water draining branch pipe form an inverted T-shaped three-way water pipe structure, and each water collecting pipe extends into the corresponding drilled stratum drilling channel;
the stratum drilling passage is used for collecting groundwater of the stratum near the diversion steel branch pipe;
the water collecting pipe is used for collecting underground water in a rock stratum drilling passage;
the first water discharge branch pipe is used for collecting underground water of a water collecting pipe communicated with the first water discharge branch pipe;
the second drainage branch pipe is used for collecting the underground water of the first drainage branch pipe communicated with the second drainage branch pipe;
the drop pipes are used for collecting the underground water in each second drainage branch pipe and enabling the collected underground water to flow to a drainage channel of the underground factory building of the pumped storage power station in a water level drop drainage mode.
Further, the stratum drainage device further comprises a pressure gauge and a gate valve, and the pressure gauge and the gate valve are connected in series to a drop down pipe extending into the underground workshop of the pumped storage power station.
Further, the included angle between the water collecting pipe and the tangent line of the virtual intersection point corresponding to the first water discharging branch pipe is 85-90 degrees.
Further, each first drainage branch pipe is communicated with three water collecting pipes.
Further, the water collecting pipe is communicated with the corresponding first water discharging branch pipe through the tee joint.
Further, each stratum drilling passage is positioned in the stratum near the outer wall of the diversion steel branch pipe above the underground factory building of the pumped storage power station.
Further, the water collecting pipe is a seamless metal pipe.
Further, the apertures of the respective formation drilling passages near the first drainage branch and the corresponding water collecting pipes are plugged by cement mortar.
The beneficial effects of the utility model are as follows:
the utility model solves the problem that the upstream side wall of the underground powerhouse of the pumped storage power station permeates water in the water filling process, and meets the requirements of safety of the upstream side wall of the underground powerhouse of the pumped storage power station and proper running environment of the underground powerhouse of the pumped storage power station.
The utility model solves the problems that the monitoring data cannot embody the real pressure value of the pressure gauge and the gate valve and the effect of the treatment measure for opening the gate valve to drain water is limited because the pressure gauge and the gate valve are far away from the upstream side wall of the underground powerhouse of the pumped storage power station.
Drawings
FIG. 1 is a schematic cross-sectional view of a formation drainage device for a pumped storage power station underground plant of the present utility model;
FIG. 2 is a schematic view of a formation borehole channel and seamless metal tube according to the present utility model;
FIG. 3 is a schematic diagram of a three-dimensional structure of a formation drainage device for a pumped storage power station underground plant of the present utility model;
FIG. 4 is an enlarged view of the view A of FIG. 3;
reference numerals illustrate:
a water collecting pipe 1; a first water discharge branch pipe 2; a drop down pipe 3; a pressure gauge 4; a gate valve 5; a formation borehole channel 7; a three-way member 1b; cement mortar 1c; the pumped storage power station underground factory building 8; a water diversion steel branch pipe 9; a lower layer drainage channel 6 of the factory building; a second drainage manifold 10.
Detailed Description
In order to make the objects, technical solutions and advantages of the present utility model more apparent, the technical solutions of the present utility model will be further clearly and completely described in the following in conjunction with the embodiments of the present utility model. It should be noted that the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
It is to be understood that the terms "upper," "lower," "front," "rear," "left," "right," and the like indicate an orientation or positional relationship based on that shown in the drawings, and are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the apparatus or element in question must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present utility model.
The terms "first," "second," "third," "fourth," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a definition of "a first", "a second", "a third" or a fourth "feature may explicitly or implicitly include one or more of such features.
Examples
As shown in fig. 1-4:
the embodiment provides a stratum drainage device of a pumped storage power station underground factory building, which is applied to a stratum above/upstream of the pumped storage power station underground factory building 8, wherein a water diversion steel branch pipe 9 of the pumped storage power station is arranged in the stratum, and the stratum drainage device comprises a plurality of drop down pipes 3, a plurality of first drainage branch pipes 2, a plurality of water collecting pipes 1 and a plurality of second drainage branch pipes 10;
each first drainage branch pipe 2 is paved on the outer wall of the water diversion steel branch pipe 9, the installation direction of each first drainage branch pipe 2 is consistent with the trend of the corresponding water diversion steel branch pipe 9, the drainage end of the drop down pipe 3 extends into the underground factory building 8 of the pumped storage power station, the drop down pipe 3 is respectively communicated with the drainage outlet of each first drainage branch pipe 2, and the drainage ends of at least three water collecting pipes 1 at intervals are respectively communicated with one corresponding first drainage branch pipe 2; at least three first water discharge branch pipes 2 which are spaced apart are communicated with each other through water inlets of a corresponding one of the second water discharge branch pipes 10;
each water collecting pipe 1 and the corresponding first water discharge branch pipe 2 form an inverted T-shaped three-way water pipe structure, and each water collecting pipe 1 extends into the corresponding drilled stratum drilling channel 7;
the stratum drilling passage 7 is used for collecting groundwater of the stratum near the diversion steel branch pipe 9;
the water collecting pipe 1 is used for collecting underground water in a rock stratum drilling passage 7;
the first drainage branch pipe 2 is used for collecting underground water of the water collecting pipe 1 communicated with the first drainage branch pipe 2;
the second water discharge branch pipe 10 is used for collecting the underground water of the first water discharge branch pipe 2 communicated with the second water discharge branch pipe 10;
the drop down pipes 3 are used for collecting the groundwater in each second drain branch pipe 10, and flow the collected groundwater to a drain channel of the pumped storage power station underground plant 8 (i.e. a lower layer drain channel 6 of the plant as shown in fig. 3) in a water level drop drainage mode.
Preferably, three first drainage branch pipes 2 are arranged at intervals, and the stratum drainage device can comprise a plurality of first drainage branch pipe 2 groups, wherein each first drainage branch pipe 2 group is distributed on different positions of the outer wall of the diversion steel branch pipe 9.
In this embodiment, the rock stratum drainage device further comprises a pressure gauge 4 and a gate valve 5, wherein the pressure gauge 4 and the gate valve 5 are connected in series to a drop down pipe 3 extending into a ground factory 8 of the pumped storage power station.
Specifically, the operator on duty can read the reading of the pressure gauge 4 at any time, visually monitor the underground water condition of the upstream side wall of the underground plant, and can release pressure by opening the gate valve 5, and simultaneously can measure the seepage quantity, thereby guaranteeing the safety of the underground plant, and the design has the advantages of simple maintenance in the operation period and cost saving; the pressure gauge 4 and the gate valve 5 of the pipe orifice do not need to be connected with a power supply, and only need to be inspected in routine inspection in the operation period, so that other cost does not need to be increased; in the actual water filling operation stage, through the safety inspection in the water filling process, the reading of the pressure gauge 4 starts to rise in the fifth water filling day, the gate valve 5 is opened in time to drain water, the water drainage flow is unequal to 0.02-0.155L/min, water seepage is effectively led and discharged, and the fact that the upstream side wall of the underground workshop is dry and free of water seepage is guaranteed.
Further, in this embodiment, the included angle between the water collecting pipe 1 and the tangent line of the virtual intersection point corresponding to the first water discharge branch pipe 2 is in the range of 85 ° -90 ° (the intersection point is the intersection point of the virtual connection center of the water collecting pipe 1 and the corresponding first water discharge branch pipe 2); this angular range is advantageous for improving the water collection efficiency of the water collection pipe 1 to the rock formation.
Preferably, the water collecting pipe 1 and the virtual intersection tangent line corresponding to the first water discharging branch pipe 2 have an optimal value of 90 degrees.
Preferably, each first branch drain pipe 2 is in angled communication with a corresponding second branch drain pipe 10.
Further in this embodiment, each first water discharge branch pipe 2 is communicated with three water collecting pipes 1.
In this embodiment, the water collecting pipe 1 is further communicated with the corresponding first water discharging branch pipe 2 through a three-way member 1 b.
Further in this embodiment, each formation drilling passageway 7 is located in a formation adjacent the outer wall of a water diversion steel branch 9 above an underground powerhouse 8 of a pumped storage power station.
Further in this embodiment, the water collecting pipe 1 is a seamless metal pipe.
Further in this embodiment, the gap between the orifice of each formation drilling passage 7 near the first drainage branch pipe 2 and the corresponding water collecting pipe 1 is plugged by cement mortar 1 c.
The foregoing examples illustrate only a few embodiments of the utility model and are described in detail herein without thereby limiting the scope of the utility model. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the utility model, which are all within the scope of the utility model. Accordingly, the scope of protection of the present utility model is to be determined by the appended claims.
Claims (8)
1. The rock stratum drainage device of the underground factory building of the pumped storage power station is applied to the rock stratum at the upstream/upper part of the underground factory building (8) of the pumped storage power station, and a water diversion steel branch pipe (9) of the pumped storage power station is arranged in the rock stratum, and is characterized by comprising a plurality of drop down pipes (3), a plurality of first drainage branch pipes (2), a plurality of water collecting pipes (1) and a plurality of second drainage branch pipes (10);
each first drainage branch pipe (2) is paved on the outer wall of the water diversion steel branch pipe (9), the installation direction of each first drainage branch pipe (2) is consistent with the trend of the corresponding water diversion steel branch pipe (9), the drainage end of the drop down pipe (3) stretches into the underground factory building (8) of the pumped storage power station, the drop down pipes (3) are respectively communicated with the drainage outlet of each second drainage branch pipe (10), and the drainage ends of at least three water collecting pipes (1) with intervals are respectively communicated with one corresponding first drainage branch pipe (2); at least three first water discharge branch pipes (2) which are spaced apart are communicated through water inlets of a corresponding second water discharge branch pipe (10);
each water collecting pipe (1) and the corresponding first water discharging branch pipe (2) form an inverted T-shaped three-way water pipe structure, and each water collecting pipe (1) extends into the corresponding drilled rock stratum drilling channel (7);
the stratum drilling passage (7) is used for collecting groundwater of the stratum near the diversion steel branch pipe (9);
the water collecting pipe (1) is used for collecting underground water in a rock stratum drilling passage (7);
the first drainage branch pipe (2) is used for collecting underground water of a water collecting pipe (1) communicated with the first drainage branch pipe (2);
the second drainage branch pipe (10) is used for collecting underground water of the first drainage branch pipe (2) communicated with the second drainage branch pipe (10);
the drop down pipes (3) are used for collecting the underground water in each second drainage branch pipe (10) and enabling the collected underground water to flow to a drainage channel of the pumped storage power station underground factory building (8) in a water level drop drainage mode.
2. The rock stratum drainage device of the underground powerhouse of the pumped-storage power station according to claim 1, characterized in that the rock stratum drainage device further comprises a pressure gauge (4) and a gate valve (5), and the pressure gauge (4) and the gate valve (5) are connected in series on a drop down pipe (3) extending into the underground powerhouse (8) of the pumped-storage power station.
3. The rock stratum drainage device of a pumped-storage power station underground powerhouse according to claim 1 or 2, characterized in that the water collection pipe (1) has an angle in the range of 85 ° -90 ° with the virtual intersection tangent of the corresponding first drainage branch pipe (2).
4. The rock stratum drainage device of the underground powerhouse of the pumped-storage power station according to claim 1 or 2, characterized in that each first drainage branch pipe (2) is communicated with three water collecting pipes (1).
5. The rock stratum drainage device of a pumped-storage power station underground powerhouse according to claim 1 or 2, characterized in that the water collecting pipe (1) is communicated with the corresponding first drainage branch pipe (2) by means of a tee piece (1 b).
6. The rock stratum drainage device of a pumped-storage power station underground powerhouse according to claim 1 or 2, characterized in that each stratum drilling passage (7) is located in a stratum near the outer wall of the water-diversion steel branch pipe (9) above the pumped-storage power station underground powerhouse (8).
7. The rock stratum drainage device of a pumped-storage power station underground powerhouse according to claim 1 or 2, characterized in that the water collecting pipe (1) is a seamless metal pipe.
8. The rock stratum drainage device of a pumped-storage power station underground powerhouse according to claim 7, characterized in that the gap between the orifice of each stratum drilling passage (7) near the first drainage branch pipe (2) and the corresponding water collecting pipe (1) is plugged by cement mortar (1 c).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320402979.XU CN219430703U (en) | 2023-03-06 | 2023-03-06 | Rock stratum drainage device of underground factory building of pumped storage power station |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320402979.XU CN219430703U (en) | 2023-03-06 | 2023-03-06 | Rock stratum drainage device of underground factory building of pumped storage power station |
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| CN219430703U true CN219430703U (en) | 2023-07-28 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116104056A (en) * | 2023-03-06 | 2023-05-12 | 广东省水利电力勘测设计研究院有限公司 | Rock stratum drainage device of underground factory building of pumped storage power station and construction method of rock stratum drainage device |
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2023
- 2023-03-06 CN CN202320402979.XU patent/CN219430703U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116104056A (en) * | 2023-03-06 | 2023-05-12 | 广东省水利电力勘测设计研究院有限公司 | Rock stratum drainage device of underground factory building of pumped storage power station and construction method of rock stratum drainage device |
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